212012241 has 16 divisors (see below), whose sum is σ = 340070400. Its totient is φ = 114773328.

The previous prime is 212012209. The next prime is 212012263. The reversal of 212012241 is 142210212.

It is not a de Polignac number, because 212012241 - 2⁵ = 212012209 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212012241.

It is not an unprimeable number, because it can be changed into a prime (212012641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265281 + ... + 266078.

It is an arithmetic number, because the mean of its divisors is an integer number (21254400).

Almost surely, 2^212012241 is an apocalyptic number.

212012241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212012241 is a deficient number, since it is larger than the sum of its proper divisors (128058159).

212012241 is a wasteful number, since it uses less digits than its factorization.

212012241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531388.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212012241 is about 14560.6401301591. The cubic root of 212012241 is about 596.2846719374.

Adding to 212012241 its reverse (142210212), we get a palindrome (354222453).

The spelling of 212012241 in words is "two hundred twelve million, twelve thousand, two hundred forty-one".